Plex Systems Appoints Heidi Melin as Chief Marketing Officer: Troy-based Plex Systems, provider of cloud ERP software for manufacturing, announced the appointment of technology marketing veteran Heidi Melin as the company’s chief marketing officer. Melin’s appointment follows a period of aggressive expansion for Plex, including the recent placement of Jason Blessing as its CEO and investments from Francisco Partners and Accel Partners. Melin joins Plex from enterprise cloud expert Eloqua (recently acquired by Oracle), where she served as senior vice president and chief marketing officer. Previously, Melin was responsible for the global marketing team at Taleo, a pioneer in cloud computing. She has also held senior marketing positions at Polycom, Hyperion and PeopleSoft. Melin will report to Jason Blessing, and will be responsible for the global strategy and execution of all aspects of Plex Systems’ marketing efforts. More at www.plex.com.